The "lpstat" command, used with no options, may return no output. It is generally better off to use an option with "lpstat".
The "lpstat" command with the "-t" option gives you total information about the printer status. This option is generally the most useful, but the printout can be lengthy if you have a large number for printers configured.
$ lpstat -t scheduler is running system default destination: Sales device for Sales: /dev/lp0 Sales accepting requests since Wed Apr 15 21:01:36 1998 printer Sales is idle. enabled since Sat Apr 18 15:40:06 1998. available.
The -t option is very informative. We now know: